Back in June I ran a post, North Coast Architecture - a note, that was an aide memoir to myself dealing with North Coast architecture. My feeling was that there was a distinctive style that had not been recognised or analysed.
The Federal Hotel was built around 1900. If you look at the photo, you will again see that wood is the main construction material. There is cast iron lacework on the balcony, but above that is the decorative wood fretwork that was so often used for decoration.
I wish I knew more about Australian architecture. The material that I have read is very macro, top down, with little about variations at a regional level.